Effect of Bamboo Sawdust Substrate and Strain Planting Density to Yield and Nutritional Quality of Dictyophora echinovolvata

doi:10.3969/j.issn.1000-2561.2020.06.005

Abstract

Abstract:

The effect of the ratio of bamboo sawdust substrate and strain planting density to the yield and nutritional quality of Dictyophora echinovolvata was discussed by the orthogonal design to screen the optimal combination and to provide a scientific technical support for D. echinovolvata cultivation. The results showed that the average fresh yield was 3.51 kg/m², and the percentage of crude protein, crude fiber and total sugar was 18.78%, 21.19% and 37.79%, respectively. There were highly significant differences of yield, crude protein, total sugar among treatment combinations (P<0.01), and there was significant difference of crude fiber (P<0.05). The yieldwassignificantly affected by bamboo sawdust substrate weight and planting density, while the nutrient composition was almost not influenced by bamboo sawdust substrate weight and planting density. The yield of the strain planting density 600 g/m²was 4.54 kg/m², which was significantly higher than those of the strain planting density 400 g/m² and 800 g/m². The yield of 16 kg/m²sawdust substrate was 3.95 kg/m², which was higher than those of 8.0 kg/m² and 12 kg/m²sawdust substrate. Crude protein, crude fiber and total sugar were highly affected by the interaction of the ratio of bamboo sawdust substrate and strain planting density. Range analysis suggested that planting density had higher effect than sawdust substrate to yield, protein and crude fiber, and there was an opposite effect on total sugar content. The range of expenditure/income ratio was (1∶3.77) to (1∶9.32),of which 16 kg bamboo sawdust substrate with cultivated 600 g/m² had the highest output value, 54.9 yuan per square meter, with a corresponding expenditure/income ratio 1∶6.62. The mass investment of sawdust substrate and strain planting density had no positive correlation to output value. It was suggested that although the nutrient composition would not be changed by the ratio of bamboo sawdust substrate and strain planting density, an optimized combination of the two would have positive effect both in the yield and expenditure/income ratio of D. echinovolvata.

Key words: Dictyophora echinovolvata, sawdust substrate, fungi bag weight, yield, nutrient composition, expenditure/ income ratio

CLC Number:

S646.8

PENG Chao,AI Wensheng,XIE Yunfan,SHI Yanfei,ZHONG Yi,LI Nan. Effect of Bamboo Sawdust Substrate and Strain Planting Density to Yield and Nutritional Quality of Dictyophora echinovolvata[J]. Chinese Journal of Tropical Crops, 2020, 41(6): 1100-1107.

Figures/Tables 8

References 22

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序号 Orders	1-A	2-B	3（A×B）	4	处理组合 Treatment combination	处理组合内容 Content of treatment combination
1	1 (400)	1 (8.0)	1	1	A₁B₁	菌种400 g+竹基质8.0 kg
2	1 (400)	2 (12.0)	2	2	A₁B₂	菌种400 g+竹基质12.0 kg
3	1 (400)	3 (16.0)	3	3	A₁B₃	菌种400 g+竹基质16.0 kg
4	2 (600)	1 (8.0)	2	3	A₂B₁	菌种600 g+竹基质8.0 kg
5	2 (600)	2 (12.0)	3	1	A₂B₂	菌种600 g+竹基质12.0 kg
6	2 (600)	3 (16.0)	1	2	A₂B₃	菌种600 g+竹基质16.0 kg
7	3 (800)	1 (8.0)	3	2	A₃B₁	菌种800 g+竹基质8.0 kg
8	3 (800)	2 (12.0)	1	3	A₃B₂	菌种800 g+竹基质12.0 kg
9	3 (800)	3 (16.0)	2	1	A₃B₃	菌种800 g+竹基质16.0 kg

序号 Orders	1-A	2-B	3（A×B）	4	处理组合 Treatment combination	处理组合内容 Content of treatment combination
1	1 (400)	1 (8.0)	1	1	A₁B₁	菌种400 g+竹基质8.0 kg
2	1 (400)	2 (12.0)	2	2	A₁B₂	菌种400 g+竹基质12.0 kg
3	1 (400)	3 (16.0)	3	3	A₁B₃	菌种400 g+竹基质16.0 kg
4	2 (600)	1 (8.0)	2	3	A₂B₁	菌种600 g+竹基质8.0 kg
5	2 (600)	2 (12.0)	3	1	A₂B₂	菌种600 g+竹基质12.0 kg
6	2 (600)	3 (16.0)	1	2	A₂B₃	菌种600 g+竹基质16.0 kg
7	3 (800)	1 (8.0)	3	2	A₃B₁	菌种800 g+竹基质8.0 kg
8	3 (800)	2 (12.0)	1	3	A₃B₂	菌种800 g+竹基质12.0 kg
9	3 (800)	3 (16.0)	2	1	A₃B₃	菌种800 g+竹基质16.0 kg

指标 Index	变异来源 Source of variation	III 型平方和 Sum square of III type	自由度 df	均方 Mean square	F值 F value	P值 P value
产量	组间	12026.35	2	6013.17	239.245	0.000^**
	组内	1960.45	78	25.13
	总数	13986.80	80
粗蛋白	组间	137.57	8	17.19	6.697	0.000^**
	组内	46.22	18	2.56
	总数	183.79	26
粗纤维	组间	153.51	8	19.19	2.766	0.035^*
	组内	124.88	18	6.94
	总数	278.39	26
总糖	组间	256.53	8	32.07	4.694	0.003^**
	组内	122.96	18	6.83
	总数	379.49	26

指标 Index	变异来源 Source of variation	III 型平方和 Sum square of III type	自由度 df	均方 Mean square	F值 F value	P值 P value
产量	组间	12026.35	2	6013.17	239.245	0.000^**
	组内	1960.45	78	25.13
	总数	13986.80	80
粗蛋白	组间	137.57	8	17.19	6.697	0.000^**
	组内	46.22	18	2.56
	总数	183.79	26
粗纤维	组间	153.51	8	19.19	2.766	0.035^*
	组内	124.88	18	6.94
	总数	278.39	26
总糖	组间	256.53	8	32.07	4.694	0.003^**
	组内	122.96	18	6.83
	总数	379.49	26

变异来源 Source of variation	因变量 Dependent variable	III 型平方和 Sum square of III type	自由度 df	均方 Mean square	F值 F value	P值 P value
种植密度（A）	产量	15.81	2	7.90	22.433	0.000^**
	粗蛋白	11.71	2	5.85	1.046	0.370
	粗纤维	47.33	2	23.66	2.845	0.082
	总糖	15.73	2	7.86	0.596	0.561
培养基质（B）	产量	3.00	2	1.50	4.263	0.029^*
	粗蛋白	15.21	2	7.60	1.359	0.280
	粗纤维	18.81	2	9.40	1.130	0.343
	总糖	45.61	2	22.80	1.728	0.203
种植密度×培养基质 (A×B)	产量	0.72	2	0.36	1.025	0.377
	粗蛋白	45.01	2	22.50	4.023	0.034^*
	粗纤维	45.89	2	22.94	2.758	0.088
	总糖	54.19	2	27.09	2.053	0.155
误差	产量	201.95	18	11.22
	粗蛋白	46.22	18	2.57
	粗纤维	124.88	18	6.94
	总糖	122.96	18	6.83
校正总计	产量	2657.95	26
	粗蛋白	183.79	26
	粗纤维	278.39	26
	总糖	379.49	26